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Cecil Celester Cooper (born December 20, 1949) is an American former professional baseball player, coach, manager and sports agent. He played in Major League Baseball as a first baseman from 1971 to 1987 for the Boston Red Sox and the Milwaukee Brewers. Cooper was a member of the Red Sox team that won the 1975 American League pennant but, rose to prominence as a member of the Brewers where he became a five-time American League All-Star player and a two-time American League RBI champion.